Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

The Morning Paper

NOVEMBER 5, 2019

Ceph is a widely-used, open-source distributed file system that followed this convention [of building on top of a local file system] for a decade. Readers of this blog properly have a pretty good idea what ‘efficient transactions’ and ‘fast metadata operations’ are all about. Implementing transactions efficiently.

Storage 64

Storage Systems Hardware Efficiency 64

Smashing Magazine

JANUARY 11, 2021

Build Optimizations JavaScript modules, module/nomodule pattern, tree-shaking, code-splitting, scope-hoisting, Webpack, differential serving, web worker, WebAssembly, JavaScript bundles, React, SPA, partial hydration, import on interaction, 3rd-parties, cache. There are many tools allowing you to achieve that: SiteSpeed.io Large preview ).

Performance 145

Performance Cache Media Metrics 145

Percona

APRIL 17, 2023

The CFQ works well for many general use cases but lacks latency guarantees. The deadline excels at latency-sensitive use cases ( like databases ), and noop is closer to no schedule at all. Make sure the drives are mounted with noatime and also if the drives are behind a RAID controller with appropriate battery-backed cache.

Best Practices 52

Best Practices Design Tuning Database 52

Smashing Magazine

JANUARY 6, 2020

dashboard (open source), SpeedCurve and Calibre are just a few of them, and you can find more tools on perf.rocks. Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Large preview ). There are many tools allowing you to achieve that: SiteSpeed.io

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

dashboard (open source), SpeedCurve and Calibre are just a few of them, and you can find more tools on perf.rocks. Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. In exchange, your team gains maintainability and developer efficiency, of course.

Performance 103

Performance Cache Metrics Network 103

Percona

MAY 15, 2023

This level of distribution will seriously affect the efficiency of the operation, which will increase the response time significantly. In the MySQL open source ecosystem, we have only two consolidated ways to perform sharding — Vitess and ProxySQL. This is it.

Traffic 125

Traffic Scalability Database Servers 125

Alex Russell

APRIL 29, 2021

Apple Corporate is at fault, not Open Source engineers or the line managers who support them. Efficiently enables new styles of drawing content on the web , removing many hard tradeoffs between visual richness , accessibility, and performance. So is speedy resolution and agreement. Form-associated Web Components. Trusted Types.

Media 145

Media Games Education Engineering 145

The Netflix TechBlog

JULY 12, 2019

The Tech Hollow , an OSS technology we released a few years ago, has been best described as a total high-density near cache : Total : The entire dataset is cached on each node?—?there there is no eviction policy, and there are no cache misses. Near : the cache exists in RAM on any instance which requires access to the dataset.

Cache 183

Cache Architecture Latency Engineering 183

Smashing Magazine

AUGUST 20, 2021

It was a battle of not only proprietary vs open source but also static vs dynamic. You could create and update blog posts, all content was straight HTML — open-source WYSIWYG editors weren’t available at the time, and Markdown didn’t come about until 2004. We can see all the bones of modern Jamstack CMSs here.

Ecommerce 139

Ecommerce Website Government Internet 139

The Netflix TechBlog

DECEMBER 17, 2019

Therefore, dumps are needed to capture the full state of a source. There are several open source CDC projects, often using the same underlying libraries, database APIs, and protocols. We want to support these systems as a source so that they can provide their data for further consumption.

Database 197

Database Traffic Transportation Open Source 197

The Netflix TechBlog

DECEMBER 17, 2019

Therefore, dumps are needed to capture the full state of a source. There are several open source CDC projects, often using the same underlying libraries, database APIs, and protocols. We want to support these systems as a source so that they can provide their data for further consumption.

Database 212

Database Traffic Transportation Open Source 212

Abhishek Tiwari

NOVEMBER 3, 2018

Cost is one of the key reasons why most government organisations, mid to large sized business, and publisher prefer open source CMS options such as WordPress and Drupal. In addition, open source CMS solutions also struggle with blotted plugin ecosystem. Eventually, we decided to move them to Jekyll.

Systems 63

Systems Cache Website Network 63

All Things Distributed

OCTOBER 12, 2016

Three years ago, as part of our AWS Fast Data journey we introduced Amazon ElastiCache for Redis , a fully managed in-memory data store that operates at sub-millisecond latency. While caching continues to be a dominant use of ElastiCache for Redis, we see customers increasingly use it as an in-memory NoSQL database.

Scalability 130

Scalability Analytics Cache AWS 130

Smashing Magazine

AUGUST 22, 2021

Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Latency can be roughly defined as the time it takes to send a packet from point A (say, the client) to point B (the server). Two-way latency is often called round-trip time (RTT).

Performance 105

Performance Network Latency Servers 105

Smashing Magazine

SEPTEMBER 6, 2021

This approach was touted to be better for fine-grained caching because each subresource could be cached individually and the full bundle didn’t need to be redownloaded if one of them changed. For example, you could reduce compression efficiency , because that works better with more data. Large preview ).

Network 104

Network Servers Cache Traffic 104